Dumbstruck by the new computer-controlled appliances? Let the Samurai enlighten you…

Click here to check out our structured, online appliance repair training courses for rookies and experienced techs.

FAQs | Repair Videos | Academy | Newsletter | Podcast | Contact

Stay connected with us...

Samurai on Facebook - become a fan today! Sign up for our free newsletter and keep up with all things Appliantology. Subscribe to our YouTube channel for lots of appliance repair tips and help! Follow the Samurai on Twitter and get timely morsels of Appliantological Wisdom! Subscribe to our MST Radio podcast to learn secrets of the trade.
  • Announcements

    • Samurai Appliance Repair Man

      Webinar Recordings Index Page   11/07/2017

      On-demand appliance repair training videos for Professional Appliantologist members Over 30 hours (and growing!) of original, high quality appliance training webinars developed and given by yours truly are at your fingertips, on topics you won't find anywhere else. Fill in those knowledge gaps, strengthen those areas of uncertainty, and boost your skills. Watch on mobile or desktop at your convenience whenever, wherever.  Ultra Short Primer on Basic Electricity, Circuits, Ohm's Law, and Schematic Reading (Length: 1:04:48) Basic Refrigerator Troubleshooting (Length: 1:10:45) Schematic Reading Workshop, 10/2015 (Length 1:19:08) Troubleshooting Strategies for Computer-Controlled Appliances (Length: 48:34) Semiconductors and PN Junctions (Length: 1:04:37) Appliance Temperature Sensing Devices & Technology (Length: 1:27:33) Voltage Measurements, Meters, Ghost Voltages, and Triac-controlled Neutrals (Length: 1:29:32) Troubleshooting with Tech Sheets, Part 1, 4/2016 (Length: 1:09:26) Troubleshooting with Tech Sheets, Part 2, 4/2016 (Length: 1:21:11) Tech Sheet Review, 4/9/2016: Bosch Speed Cooker, Amana Refrigerator, GE Glass Cooktop Range (Length: 1:22:58) Pulse Width Modulated (PWM) Switches used in Samsung Switched Mode Power Supplies (SMPS) (Length: 27:07) PWM Computer Cooling Fan in a Whirlpool Refrigerator (Length: 14:53) Understanding AC Split-phase Household Power Supplies (Length: 52:41) Troubleshooting a Samsung Electric Dryer without Disassembly using Live Tests and the Schematic (Length: 22:47) Troubleshooting a Bosch Dishwasher No-Heat Problem using the Schematic and Live Tests (Length: 15:38) Linear Motors and Linear Compressors (Length: 55:54) Bi-directional PSC Drive Motor Systems in Whirlpool VM Washers (Length: 56:52) Appliance Service Call Structure and Troubleshooting Strategies (Length: 1:00:16) The Ten Step Troubleshooting Tango and Workshop Exercises (Length: 1:35:39) Troubleshooting Ten-Step Tango Advanced Workshop (Length: 1:32:06) Ten-Step Tango Troubleshooting Workshop: Refrigerators (Length: 1:35:57) Whirlpool Duet Washer Schematic Analysis & Whirlpool Dryer Moisture Sensor System (Length: 1:03:04) Neutral Vs. Ground, Inverter Microwave, Digital Communications, Loading Down in DC loads, and more! (Length: 1:14:45) Gas Oven Service Call After a Parts Changing Monkey (Length: 36:04) AFCI and GFCI Circuit Protection Technology (Length: 41:26) Troubleshooting Samsung Refrigerators and more (Length: 1:29:58) 3-way Valves and Dual Evaporator Refrigerators (Length: 1:15:45) Split-Phase Compressors and PTC Start Devices (Length: 1:11:57) Gas Dryer Ignition Systems (Length: 53:50) Refrigerator Sealed System Thermodynamics, Part 1 (Length: 43:07) Refrigerator Sealed System Thermodynamics, Part 2 (Length: 1:09:09) Refrigerator Sealed System Thermodynamics, Part 3 (Length: 1:11:56) Refrigerator Sealed System Thermodynamics, Part 4 (Length: 37:45) Refrigerator Sealed System Thermodynamics, Part 5 (Length: 16:35) To access these webinars and all the other info-goodies here at Appliantology, become a Professional Appliantologist today. If you need cost-effective, time-flexible, state-of-the-art appliance technical training, check out the Master Samurai Tech Academy.
    • Son of Samurai

      [Webinar] Appliantology Workshop   11/09/2017

      Information is the name of the game in the appliance repair trade today. Appliantology is a powerful information tool for the professional appliance repair technician. But just like with any of the more capable tools in your tool bag, many of the more powerful features are hidden from you unless you "read the manual." Ugh! Who wants to do that? Well, this is one time when you don't have to! In this webinar, Team Samurai will personally walk you through the site and show you many of the useful and powerful features that even long-time users probably never knew existed.   
abeavens

Bosch SHE42L

Recommended Posts

abeavens

Having an intermittent problem trying to start the dishwasher. Every couple of days it will not respond to the Power Button (no lites, although a couple of times a group of them have flashed on when pushing the button). I have checked the ON/OFF and Door switches and all contacts appear to work properly. I have checked all connectors on the Control Board. Are there any voltages I can measure. On the two maintained contacts on the ON/OFF switch, I read 120VAC on one (middle with white wire) and 52VAC (door sw on) or 68VAC (door sw off) on the other. Just opened up the Control Module and found a dead cockroach on solder side of circuit board, but after proper burial, still no luck.

Any other info or tests?

Mahalo

Art

Share this post


Link to post
Share on other sites

Need appliance parts? Call 877-803-7957 now!

RegUS_PatOff

I don't have a wiring diagram for that model,

but I would think if the ON/OFF Switch was ON, there should be 120v on each side...

and 0v across the Switch

Share this post


Link to post
Share on other sites
abeavens

I thought it might be the same also since the voltages seem strange. The middle contact does have 120VAC on both sides, but the left one changes (but is the same on both sides) when door switch is operated. Can you give any help finding a part since nothing seems to confirm a part for the SHE42L. I did find a part that looks like it at Repairclinic.com (1161532) but can't confirm it. Besides, it is not in stock.  

OK, here is new information. Doesn't look like a Control Module problem after all. I put it all back together and still no lites or action. As I pushed the door shut, a couple of lites flashed. I then pushed again on the door and it was actually rocking the unit and the lites came on correctly. Then letting it come back down, off they went. I was finally able to get it into a position where it worked. Seems like there must be some more switches and I am getting intermittent contact. I will pull the unit out next and look underneath for anything that can move when rocked. Does anyone know of other switches whick would give these symptoms?

Share this post


Link to post
Share on other sites
Budget Appliance Repair

I would be looking at the door latch, (if it is the style that has microswitches), and check the wiring at the bottom of the door, (possible broken wires, maybe broken internally and not visible, will have to ohm out each wire).

Share this post


Link to post
Share on other sites
abeavens

Well, the mystery has been solved. I removed the front panel so I could see where all of the wires went, and guess what I found all rolled up by the hinge. The schematic. This is what I was requesting in the first place. There I found that the 52 - 68 VAC really should have been 0VAC, so now I realized that it was the old FLOATING NEUTRAL trick. The unit had not been installed well and the board it was screwded into had come loose, that is why I could rock it. I pulled it all of the way out and found that AC plug was half out of the receptacle and cord kinked and being pushed against by the unit. There was melted mastic from back of the unit all over the plug. I installed a right angle plug type line cord and now all of our beer mugs are clean again. When I get close to a scanner again, I will send the schematic for the "Secret Stash".

Share this post


Link to post
Share on other sites